Here's some sample code to illustrate what I'm trying to do.
I know this isn't 100% correct.
In fact the small script-let below where I try to persistent the property
"saveme" fails:
*Fatal error in ..\..\src\objects.cc, line 4265
CHECK(proto->IsJSGlobalObject()) failed*
This started happening after I added the call to SetPrototype().
Also I'm not sure how to make it so the "request" global has no built-ins
(String, Array, Object etc).
I want these to come via prototype chain from the "session" global. In
order to preserve "InstanceOf" working across several requests.
Any ideas?
------------------------
#include <v8.h>
using namespace v8;
// Helper function that compiles and runs the source.
static inline v8::Local<v8::Value> CompileRun(const char* source) {
return v8::Script::Compile(v8::String::New(source))->Run();
}
> int main(int argc, char* argv[])
> {
> HandleScope scope;
> Persistent<Context> ctxRequest = Context::New();
> Persistent<Context> ctxSession = Context::New();
>
> //Set same security token for request and session.
> Local<Value> foo = String::New("foo");
> ctxRequest->SetSecurityToken(foo);
> ctxSession->SetSecurityToken(foo);
>
> //Hold on to global from ctxSession and detach global We want to use
> this later
> Persistent<Object> globalSession =
> Persistent<Object>::Persistent(ctxSession->Global());
> ctxSession->DetachGlobal();
> ctxSession.Dispose();
>
> ctxRequest->Enter(); //Start execution of 1st request.
>
> //Chain request global's prototype to session global so built in
> functions and objects are always found in session.
> ctxRequest->Global()->SetPrototype(globalSession);
>
> //Create a reference to session global on request global.
> //Allows clients to directly set properties that will persistent with
> the session
> ctxRequest->Global()->Set(String::New("Session"), globalSession);
>
> //Add property to the session global and save it.
> CompileRun("Session.saveme = 42;"); //THIS LINE ASSERTS.
> ctxRequest->Exit(); //1st request is done.
>
> Persistent<Context> ctxRequest2 = Context::New();
> ctxRequest2->SetSecurityToken(foo);
> ctxRequest2->Enter();
>
> //Chain request global's prototype to session global so built in
> functions and objects are always found in session.
> ctxRequest2->Global()->SetPrototype(globalSession);
>
> //Allows clients to directly set properties that will persistent with
> the session
> ctxRequest2->Global()->Set(String::New("Session"), globalSession);
>
> //Check that we can get value of saved property in the session.
> Local<Value> result = CompileRun("Session.saveme");
> CHECK(!result->IsUndefined());
> CHECK(result->IsInt32());
> CHECK(42 == result->Int32Value());
>
> ctxRequest2->Exit();
> ctxRequest2.Dispose();
>
>
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